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In reply to the discussion: Should the United States extradite Amanda Knox if the Italian government requests it? [View all]TexasMommaWithAHat
(3,212 posts)by the Italian Barney Fifes, you would have no question how the bra clasp could have been contaminated.
Gloves and shoe covers are not worn to protect the investigator. They are worn to protect the evidence. They are not supposed to pick up evidence, pass it around from one person to another, drop it on the floor, pick it up, and so on. Gloves should have been changed repeatedly. Small tweezer type instruments should have been used to pick up the objects. They should have been placed in paper bags - not plastic bags. There are good, solid reasons why forensic science requires this careful behavior: contamination!
They walked into the house, opened the door on which Rafaelle's DNA was undoubtedly found since he tried to open the door, and proceeded to make one giant freaking mess inside that room looking for DNA. All those mistakes in a room that had been entered at least a few times by day 46, when the bra clasp was found.
WATCH THE VIDEO. Find all the mistakes made. Even as serious as this case is, I laugh when I watch the video of the evidence collection. It is that damning.
By the way, you can find a person's DNA in dust. It's that small. And we are discussing DNA, and not blood.
ETA - there is no rhyme or reason why the bolding came out the way it did. Suffice it to say, it was not my intention to bold half of what I wrote.